Sidelink assisted multi-link communication

Abstract

Aspects described herein relate to sidelink-assisted virtual multi-link. In one aspect, for example, a relay node may serve as an additional virtual antenna panel for a UE by receiving downlink data from a base station via an access link, or receiving uplink data from the UE via a sidelink. The relay node may forward the downlink data to the UE via sidelink, or the uplink data to the base station via the access link. In another aspect, a base station may determine, for a UE, quasi-colocation (QCL) information and a grant for one or both of one or more access link resources or one or more sidelink resources. The base station may further transmit, to the UE, the QCL information and the grant on a downlink communication channel.

What is claimed is: 
     
         1 . A method of wireless communications by a base station, comprising:
 determining, for a UE, quasi-colocation (QCL) information and a grant for one or both of one or more access link resources or one or more sidelink resources; and   transmitting, to the UE, the QCL information and the grant on a downlink communication channel.   
     
     
         2 . The method of  claim 1 , wherein the QCL information indicates one or more beams to be used for one or both of access link or sidelink communication. 
     
     
         3 . The method of  claim 1 , wherein the QCL information indicates one or more QCL resources corresponding to one more access link reference signals, sidelink reference signals, or a combination thereof. 
     
     
         4 . The method of  claim 1 , wherein the QCL information indicates a relay node identifier. 
     
     
         5 . The method of  claim 1 , wherein the QCL information indicates a sequence of joint transmission configuration indication (TCI) states for combined beam and sidelink sweeping. 
     
     
         6 . A receiver node for wireless communication, comprising:
 a memory configured to store instructions; and   at least one processor communicatively coupled with the memory, wherein the at least one processor is configured to:
 determine, for a UE, quasi-colocation (QCL) information and a grant for one or both of one or more access link resources or one or more sidelink resources; and 
 transmit, to the UE, the QCL information and the grant on a downlink communication channel. 
   
     
     
         7 . The receiver node of  claim 6 , wherein the QCL information indicates one or more beams to be used for one or both of access link or sidelink communication. 
     
     
         8 . The receiver node of  claim 6 , wherein the QCL information indicates one or more QCL resources corresponding to one more access link reference signals, sidelink reference signals, or a combination thereof. 
     
     
         9 . The receiver node of  claim 6 , wherein the QCL information indicates a relay node identifier. 
     
     
         10 . The receiver node of  claim 6 , wherein the QCL information indicates a sequence of joint transmission configuration indication (TCI) states for combined beam and sidelink sweeping. 
     
     
         11 . A receiver node for wireless communication, comprising:
 means for determining, for a UE, quasi-colocation (QCL) information and a grant for one or both of one or more access link resources or one or more sidelink resources; and   means for transmitting, to the UE, the QCL information and the grant on a downlink communication channel.   
     
     
         12 . The method of  claim 11 , wherein the QCL information indicates one or more beams to be used for one or both of access link or sidelink communication. 
     
     
         13 . The method of  claim 11 , wherein the QCL information indicates one or more QCL resources corresponding to one more access link reference signals, sidelink reference signals, or a combination thereof. 
     
     
         14 . The method of  claim 11 , wherein the QCL information indicates a relay node identifier. 
     
     
         15 . The method of  claim 11 , wherein the QCL information indicates a sequence of joint transmission configuration indication (TCI) states for combined beam and sidelink sweeping.